package com.itxiaofeng.spzx.manager.service.impl;

import cn.hutool.captcha.CaptchaUtil;
import cn.hutool.captcha.CircleCaptcha;
import com.itxiaofeng.spzx.manager.service.ValidateCodeService;
import com.itxiaofeng.spzx.model.vo.system.ValidateCodeVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class ValidateCodeServiceImpl implements ValidateCodeService {

    @Autowired
    private RedisTemplate<String,String> redisTemplate;
    // 生成图片验证码
    @Override
    public ValidateCodeVo generateValidateCode() {
        // 1通过工具生成图片验证码
        // hutool工具，注意看依赖我们前面已经导入了
        CircleCaptcha circleCaptcha = CaptchaUtil.createCircleCaptcha(150, 48, 4, 2);
        String code = circleCaptcha.getCode();
        String imageBase64 = circleCaptcha.getImageBase64();

        // 2把验证码存储到redis里面，设置redis的key：uuid redis的value:验证码值
        // 设置过期时间
        String key = UUID.randomUUID().toString().replaceAll("_","");
        redisTemplate.opsForValue().set("user:validate" + key, code,5, TimeUnit.MINUTES);
        // 3返回验证码对象
        ValidateCodeVo validateCodeVo = new ValidateCodeVo();
        validateCodeVo.setCodeKey(key);
        validateCodeVo.setCodeValue("data:image/png;base64," + imageBase64);
        return validateCodeVo;
    }
}
